From: Borislav Petkov <bp@alien8.de>
To: James Morse <james.morse@arm.com>
Cc: linux-acpi@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
Christoffer Dall <christoffer.dall@linaro.org>,
Marc Zyngier <marc.zyngier@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Rafael Wysocki <rjw@rjwysocki.net>, Len Brown <lenb@kernel.org>,
Tony Luck <tony.luck@intel.com>,
Tyler Baicar <tbaicar@codeaurora.org>,
Dongjiu Geng <gengdongjiu@huawei.com>,
Xie XiuQi <xiexiuqi@huawei.com>,
Punit Agrawal <punit.agrawal@arm.com>
Subject: Re: [PATCH 00/11] APEI in_nmi() rework and arm64 SDEI wire-up
Date: Mon, 19 Feb 2018 22:05:23 +0100 [thread overview]
Message-ID: <20180219210523.GA17922@pd.tnic> (raw)
In-Reply-To: <20180215185606.26736-1-james.morse@arm.com>
On Thu, Feb 15, 2018 at 06:55:55PM +0000, James Morse wrote:
> Hello!
>
> The aim of this series is to wire arm64's SDEI into APEI.
>
> What's SDEI? Its ARM's "Software Delegated Exception Interface" [0]. It's
> used by firmware to tell the OS about firmware-first RAS events.
>
> These Software exceptions can interrupt anything, so I describe them as
> NMI-like. They aren't the only NMI-like way to notify the OS about
> firmware-first RAS events, the ACPI spec also defines 'NOTFIY_SEA' and
> 'NOTIFY_SEI'.
>
> (Acronyms: SEA, Synchronous External Abort. The CPU requested some memory,
> but the owner of that memory said no. These are always synchronous with the
> instruction that caused them. SEI, System-Error Interrupt, commonly called
> SError. This is an asynchronous external abort, the memory-owner didn't say no
> at the right point. Collectively these things are called external-aborts
> How is firmware involved? It traps these and re-injects them into the kernel
> once its written the CPER records).
Thank you about those! This is how people should write 0/N introductory
messages with fancy new abbreviations.
:-)
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
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next prev parent reply other threads:[~2018-02-20 21:07 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-15 18:55 James Morse
2018-02-15 18:55 ` [PATCH 01/11] ACPI / APEI: Move the estatus queue code up, and under its own ifdef James Morse
2018-02-20 18:26 ` Punit Agrawal
2018-02-20 19:28 ` Borislav Petkov
2018-02-23 18:02 ` James Morse
2018-02-23 18:07 ` Borislav Petkov
2018-02-15 18:55 ` [PATCH 02/11] ACPI / APEI: Generalise the estatus queue's add/remove and notify code James Morse
2018-02-20 18:26 ` Punit Agrawal
2018-02-23 18:21 ` James Morse
2018-03-01 15:01 ` Borislav Petkov
2018-03-01 18:06 ` Punit Agrawal
2018-03-01 22:35 ` Borislav Petkov
2018-03-07 18:15 ` James Morse
2018-03-08 10:44 ` Borislav Petkov
2018-03-19 14:29 ` James Morse
2018-03-27 17:25 ` Borislav Petkov
2018-03-28 16:30 ` James Morse
2018-04-17 15:10 ` Borislav Petkov
2018-02-15 18:55 ` [PATCH 03/11] ACPI / APEI: Switch NOTIFY_SEA to use the estatus queue James Morse
2018-02-15 18:55 ` [PATCH 04/11] KVM: arm/arm64: Add kvm_ras.h to collect kvm specific RAS plumbing James Morse
2018-02-15 18:56 ` [PATCH 05/11] arm64: KVM/mm: Move SEA handling behind a single 'claim' interface James Morse
2018-02-20 18:30 ` Punit Agrawal
2018-02-15 18:56 ` [PATCH 06/11] ACPI / APEI: Make the fixmap_idx per-ghes to allow multiple in_nmi() users James Morse
2018-02-20 21:18 ` Tyler Baicar
2018-02-22 17:47 ` James Morse
2018-02-15 18:56 ` [PATCH 07/11] ACPI / APEI: Split fixmap pages for arm64 NMI-like notifications James Morse
2018-02-15 18:56 ` [PATCH 08/11] firmware: arm_sdei: Add ACPI GHES registration helper James Morse
2018-02-20 18:31 ` Punit Agrawal
2018-02-15 18:56 ` [PATCH 09/11] ACPI / APEI: Add support for the SDEI GHES Notification type James Morse
2018-02-15 18:56 ` [PATCH 10/11] mm/memory-failure: increase queued recovery work's priority James Morse
2018-02-15 18:56 ` [PATCH 11/11] arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work James Morse
2018-02-19 21:05 ` Borislav Petkov [this message]
2018-02-20 18:42 ` [PATCH 00/11] APEI in_nmi() rework and arm64 SDEI wire-up Punit Agrawal
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